package com.itheima.Controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.Pojo.Category;
import com.itheima.Pojo.Dish;
import com.itheima.Pojo.DishFlavor;
import com.itheima.Service.CategoryService;
import com.itheima.Service.DishFlavorService;
import com.itheima.Service.DishService;
import com.itheima.common.R;
import com.itheima.dto.DishDto;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */
@Slf4j
@RestController
@RequestMapping("/dish")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){

        dishService.saveWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }

    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        //构造分页构造器对象
        Page<Dish> pageInfo=new Page<>(page,pageSize);
        Page<DishDto> dishDtoPage=new Page<>();

        //条件构造器
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name!=null,Dish::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);
        //执行分页查询
        dishService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");

        List<Dish> records=pageInfo.getRecords();

        List<DishDto> list=records.stream().map((item)->{
            DishDto dishDto=new DishDto();

            BeanUtils.copyProperties(item,dishDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if(category!=null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }

    /**
     * 根据id查询菜品信息和对应的口味信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id){

        DishDto dishServiceByIdWithFlavor = dishService.getByIdWithFlavor(id);
        return R.success(dishServiceByIdWithFlavor);
    }

    /**
     * 修改操作
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        dishService.updateWithId(dishDto);
        return R.success("修改成功");
    }

    /**
     * 根据条件查询对应的菜品数据
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<DishDto>> getCategory(Dish dish){
        LambdaQueryWrapper<Dish> lambdaQueryWrapper=new LambdaQueryWrapper<>();
        lambdaQueryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        lambdaQueryWrapper.eq(Dish::getStatus,1);
        lambdaQueryWrapper.orderByAsc(Dish::getSort).orderByAsc(Dish::getCreateTime);
        List<Dish> list = dishService.list(lambdaQueryWrapper);

        List<DishDto> dishDtoList=list.stream().map((item)->{
            DishDto dishDto=new DishDto();

            BeanUtils.copyProperties(item,dishDto);
            //分类id
            Long categoryId=item.getCategoryId();
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if(category!=null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }

            //当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper1=new LambdaQueryWrapper<>();
            lambdaQueryWrapper1.eq(DishFlavor::getDishId,dishId);

            List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper1);
            dishDto.setFlavors(dishFlavorList);
            return dishDto;
        }).collect(Collectors.toList());
        return R.success(dishDtoList);
    }

    @PostMapping("/status/{status}")
    public R<String> updateStatus(@PathVariable Integer status,String [] ids){
        for(String id:ids){
            Dish dish = dishService.getById(id);
            dish.setStatus(status);
            dishService.updateById(dish);
        }
        return R.success("状态修改成功");
    }

    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){
        dishService.deleteWithFlavor(ids);
        return R.success("删除成功");
    }

}
